Mister Tom: Nice ideas but I think rather niche, and some of the groupings are a bit loose. Solvable, but still: right is not a triangle.... and isosceles is _only_ a triangle. For instance Golden, love and warning would be better, not only to widen the concepts in the group but also not to give the game away. But have another go: some of us like maths ;-p (3 months, 1 week ago)